Tongue-truck for harvesters.



PATENTED MAR. 17, 1908. L. G. JOHNSON.

TONGUE TRUCK FOR HARVESTBRS. APPLICATION FILED MAY14,1907.

2 SHEETS-SHEET l.

A TTORNE Y5 No. 882,113. Q PATENTED MAR. 17, 1908. L. G. JOHNSON.

TONGUE TRUOK FOR HARVESTERS.

APPLICATION FILED MAY 14,1907.

2 SHEETS-SHEET 2.

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v v/ a O By A 'TTORNE VS UNITED STATES PATENT OFFICE.

LEVI G. .TOHNSON, OF APPLE, MINNESOTA.

TONGUE-TRUCK FOR HARVESTERS.

Specification of Letters Patent.

Application filed May 14; 1907.

Patented March 17, 1908.

Serial No. 373,652.

novel construction and arran ement of its parts ashereina'fter shown an escribed.

. The object of the invention is to provide a tongue truck having itsparts so arranged that the tongue may buckle laterally at the end of aswath in order that the harvester ma be readily turned at a true right an le an the sickle bar thereof may enter initially into the new swath along its entire length, thereby, preserving rectangular relation of the adpicent swaths and avoiding. bowing at the initial ends of the swaths.

Inthe accompanying drawings :Figure 1 is a top plan view of the ton e truck. Fig. 2 is a transverse sectional v1ew of the same cut on the line 22. Figs. 3, 4 and 5 are top plan views of the truck in difierent posishowing a slightly tions.

erent arrangement of the parts thereof. Fig. 7 is a pers ective view of a rod used upon the truck. a side elevation of the truck. Fig; 9 isa diagrammatic view. of a harvester fitted with the tongue truck and showing thecourses taken by the difi'erent parts w en turning a cornerin the grain fie d. Figs. 10 and 11 are plan views of the draft bar'with parts broken away showing different arrange- Fig. 12 is a transverse sectional view of; the tongue showing the manner of attaching an ,arm to a shaft used in the truck. I

The tongue truck is used in combination with the stub tongue 1 and the tongue proper 2. The stub tongue 1 is attached to the frame of a harvester in the usual manner and is held at the pro or angle with relation thereto by means 0 the ti ting bar 3 which passes verticall through the stub tongue 1 and is provide at a point above the stub tongue 1 with a cotter pin 4 which. maybe passed through any one of the erforations 5 and a coil spr n 6 interpose between the cotter pin 4 and t e upper surface of the stub tongue 1.

is attached to the arvester as indicated by dotted lines iii-Fig. 8. The spring 6 is under- Fig. 6 is a tcpfplan view of the truck ward ends to the draft bar 23.

The upper end of the tilting rod 3 be compressed and serve as a check while as the sai frame rocks rearwardly the weight of the forward end of the stub tongue and its attachments will serve as a 'check. The crankshaft 8 passes vertically through the tongue 1 and the ground wheel 9 is journale'd upon the crank end of the said shaft 8. The said wheel 9 is provided upon its periphery with an annular flange 10 which is located midway of the side faces of the said wheel;-

The shaft 8 is journale'd for rotation in the tongue 1 and the wheel 9 normally travels upon the grain side of the tongue 1; when turning the harvester, however, the said wheel may swing under the said tongue. The arm '11 is adjustably attached to the upper end of the shaft 8 and is provided with a series of perforations 12. The .tongue clevis 13 is pivoted to the end of the stub tongue 1 but is limited to relative lateral movement only. The tongue proper 2 is pivoted in the clevis 13 but is limited to swing vertically only. The bar 14 is pivoted to the end of the stub tongue 1 and is rovided with a series of erforations 15. he bars '11 and 14 extend grainward from the stub tongue 1. The clevis 13 is provided at its side with the eyes 16 and the rod hook 17' enters one of the said eyes-at its hooked end and is threaded at its opposite end and enters the collar 18. Said collar 18 is provided with a shank 19 which is adapted-to enter any one of the perforations 15 and is held therein by a cotter pin 20. A-similar rod 21 connects the bars 11 and 14 together in a similar man ner. The draft rods 22 cross the stub ton no 1 diagonally and are attached at their or Said draft bar isattached to the forward portion of the stub tongue 1 and extends stubbleward therefrom. The rear end of the draft rod 22' is adapted to be connected with the frame of .7

the harvester. The draft bar 23 is provided with the pulleys 24 located at proper intervals along the same and upon a draft chain fender rod 28 .is erected at the forward 25 maybe so mounted as to require the use of two, three or four draft animals. As this mechanism refers more partichlarly to draft equalizers than tongue trucks'itsv arrangement will not be described-in detaih he 'doubletrees 26 are connected with the endsof thedraft chain'25 and the swingletrees 27 are mounted upon the said doubletrees. The

ortion of the stubtongue 1 and is adapte to prevent the lines or reins from becoming tangled with the harvester reel when a turn is 4 made. 1

- adjusted that the bar 14 will From the foregoing description it is obvious' that the bar' 11 may be extended from the shaft 8 in a parallel line with the crank end of thesaid shaft and the parts may be so the bar 11. Such an adjustment is desired when a certain number of draft animals are used as it equalizes the lateral strain upon the animals when making a turn. When, however, another number of draft animals are used the bar 11 may be shifted out of its parallel linear relation with the crank end of the shaft 8 and the bar 14 may be inclined with relation to the said bar 11.

It is obvious that a multiplicity of adjustments may be accomplished in order to meet various conditions presented under existing circumstances.

Having described my invention what I- re parallel with claim as new and desire to secure by Letters- Patent is 1. In combination with a ton ue proper and a stub tongue, means pivotal y connect ing said tongues together for relative lateral movement only, a crankshaft journaled inthe stub tongue, a ground Wheel journaled upon the crank of the said shaft, a bar at tached to'said shaft, a secondbar pivoted to the stub tongue, a means connecting said bars together and a means connecting the last said bar with the means pivotally connecting the tongues together.

2. In combination with a tongue proper and a stub tongue, ac vis'pivoted to the stub'tongue for lateral movement only and pivotally connected with the tongue proper,

whereby the latter may swing vertically, a crank shaft journaled in the stub tongue, a ground wheel journaled upon the crank of said shaft, an arm adjustably fixed to said shaft, a bar pivoted to the stub tongue, an 

